6165389394 has 24 divisors (see below), whose sum is σ = 13410331740. Its totient is φ = 2047131648.

The previous prime is 6165389393. The next prime is 6165389413. The reversal of 6165389394 is 4939835616.

6165389394 is a `hidden beast` number, since 6 + 16 + 538 + 9 + 3 + 94 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4487258169 + 1678131225 = 66987^2 + 40965^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6165389394.

It is not an unprimeable number, because it can be changed into a prime (6165389393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 661759 + ... + 671010.

Almost surely, 2^6165389394 is an apocalyptic number.

6165389394 is an abundant number, since it is smaller than the sum of its proper divisors (7244942346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6165389394 is a wasteful number, since it uses less digits than its factorization.

6165389394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333034 (or 1333031 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 6165389394 is about 78519.9935939885. The cubic root of 6165389394 is about 1833.6657382141.

The spelling of 6165389394 in words is "six billion, one hundred sixty-five million, three hundred eighty-nine thousand, three hundred ninety-four".